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![[RETRO ARMS] CNC Piston Head POM](http://rock-et.jp/cdn/shop/files/RETRO-7206_1024x1024.jpg?v=1750401403)
제품 잘맞고 유격없이 잘 장착했어요. 아쉬운 점은 이너바렐과 프론티어 레일에 고정시킬 부품이나 오링이 동봉되어있다면 더 좋았을텐데 그부분이 아쉽네요.
배송이랑 안내 모두 친절하게 해주셨고 물건도 완벽하게 도착했습니다
依頼から受け取りまでとてもスムーズかつスピーディーに対応して頂きました。
RETRO ARMS piston head,
POM is made of resin and the weight of the piston head + O-ring is 3.6g.
It weighs just 8.7g including the thrust bearing and fixing screws.
When fixing the mounting screws, please use a locking agent for plastic (such as Loctite 425).
There may seem to be nine intake and exhaust holes, but
The area of the hole that is open as an air passage is about 40% of the diameter of the hole.
The effective area is equivalent to approximately 3.6 Φ2.5mm holes.